Homeland Security Secretary Janet Napolitano said the federal budget sequester will lead to reduced operations in New York City.
Speaking at the NYPD's Shield Conference in Lower Manhattan on Tuesday, Napolitano said sequestration will reduce Coast Guard operations by 24 percent in New York waters.
She said this means cooperation across departments must continue.
"We do not want this. We will work hard to fill our security missions to the best of our ability and our partnerships with groups like the New York Police Department will be as important, indeed more important than ever," Napolitano said.
The secretary also said airport wait times are expected to increase, especially during peak hours.
This is a development transportation officials say travelers are already experiencing.
The 1993 World Trade Center Bombing was also a major focus at this year's Shield Conference'.
Police Commissioner Ray Kelly said that the NYPD is still learning lessons on how to prevent attacks two decades after the first World Trade Center bombing.
"The threat we face is extremely complex," Kelly said. "It is homegrown and it is international. It involves informal networks of aspiring radicals as well as organized entities with funds, training camps and media savvy."